Question

read these lines from \sonnet 18\ by william shakespeare. and every fair from fair sometime declines, by chance, or natures changing course untrimmd the purpose of these lines is to explain that beauty can fade teach a lesson about nature define the meaning of \fair\ argue that things never change

Explanation:

The lines state that beauty ("every fair") will decline. "By chance, or nature’s changing course" implies external factors (chance) or natural processes (nature’s course) can cause this decline. So, it's about beauty fading.

Answer:

explain that beauty can fade